•1 



M^tft'/rhic. JiccL 



Sftftt'tfr-lvad / ^ 'fd 

 IJoUonh /t* 

 lioitoith tcmpemiuini 



Corroded itftHpfratuni 

 »•//> -^ •^* Siurffice ' 

 Trawl or dredge or tangles 



SOUNDING WIRE. DREDGE ROPE. 



VP. 



O 



200 

 300 



700 



tono 



t KKl 

 J 3 00 



1700 

 iSon 

 (900 

 JOno 

 2100 



2400 



HOWS. 



VI'. 



